Home / 1,206,128.40-1,809,192.60-576,272.40

Finding the Fourth Proportional to 1,206,128.40, 1,809,192.60 and 576,272.40

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Solution

The fourth proportional to 1,206,128.40, 1,809,192.60 and 576,272.40 is: 864,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,128.40 : 1,809,192.60 = 576,272.40 : x
  2. Step 2: Convert to fraction form
    1,206,128.40/1,809,192.60 = 576,272.40/x
  3. Step 3: Cross multiply
    1,206,128.40x = 1,809,192.60 × 576,272.40
  4. Step 4: Simplify right side
    1,206,128.40x = 1,042,587,761,664.24
  5. Step 5: Solve for x
    x = 1,042,587,761,664.24/1,206,128.40
  6. Step 6: Final answer
    x = 864,408.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.